Test Code PPAP
Parental Sample Prep for Prenatal Microarray Testing

Useful For

Preparing parental blood samples for possible confirmation
testing if an abnormality is detected on the prenatal array
sample

DNA extraction of the maternal blood sample used for maternal
cell contamination testing

Testing Algorithm

This test can only be
ordered on the parents when a prenatal microarray test has been
ordered on the fetal sample.

This test code contains no charge and serves as a way to
correlate proband and parental specimens. If additional testing is
warranted, the appropriate tests will be added.

When prenatal microarray analysis is ordered, parental blood
samples are collected and prepared for confirmation studies should
an abnormality be detected on the prenatal sample. If an
abnormality is detected on the fetal sample, the most appropriate
testing (microarray, FISH, or chromosome analysis) to aid in the
interpretation of the prenatal result is performed on the parental
samples. A paternal blood sample is desired but not required.

Maternal cell contamination testing will be performed on the
maternal blood and prenatal samples to rule out the presence of
maternal cells in the fetal sample.

Method Name

DNA Extraction/Cell Culture

Reporting Name

Parental Prenatal Array Prep Test

Specimen Type

Whole blood

Necessary Information

1. The reason for referral is required.

2. Include the name listed on the prenatal sample that was
submitted for prenatal microarray analysis.